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  1. #1
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    cschofld is on a distinguished road

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    Default [FNR] Unbuffered TreeGrid Render Bug

    [FNR] Unbuffered TreeGrid Render Bug


    A TreeGrid with an Unbuffered View can lose rendered values.

    GXT - 2.1.1, 2.2.0 RC1
    GWT - 2.0.3, 2.0.4
    Host mode / web mode - Both
    Browser and version - All
    Operating System - Any

    Sample code:
    Change com.extjs.gxt.samples.client.examples.treegrid.TreeGridExample.java to be unbuffered.
    Code:
        ...
        final TreeGrid<ModelData> tree = new TreeGrid<ModelData>(store, cm);
        // insert following line
        tree.getTreeView().setBufferEnabled(false);
        tree.setBorders(true);
        ...
    To verify the issue:
    1. Run the example (Basic TreeGrid).
    2. Starting at the bottom of the tree expand each node including child nodes.
    3. Scroll to the bottom.
    Work Around:
    Override the view:
    Code:
        TreeGridView view = new TreeGridView() {
            @Override
            protected void clean() {
                if (grid == null || !grid.isViewReady() || !isBufferEnabled()) {
                    return;
                  }
                super.clean();
            }
        };
        view.setBufferEnabled(false);
        final TreeGrid<ModelData> tree = new TreeGrid<ModelData>(store, cm);
        tree.setView(view);
        tree.setBorders(true);
        ...
    Buffered
    Buffered.gif
    Unbuffered
    Unbuffered.gif
    Attached Images

  2. #2
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    sven is a glorious beacon of light sven is a glorious beacon of light sven is a glorious beacon of light sven is a glorious beacon of light sven is a glorious beacon of light sven is a glorious beacon of light

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    Default


    Thanks for reporting. This is fixed in SVN now as of revision 2202. I fixed it directly in BufferView, as it also effects normal grid with BufferView.

  3. #3
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    Default Which version of gxt contains this fix?

    Which version of gxt contains this fix?


    Could you please let us know which version of gxt contains this fix for rendering issue.

    Regards
    Abhi

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